Dabbing brush for wool combing machines



1941- T. LORIMER 2,254,015

DABBING BRUSH FQR WOOL COMBING MACHINES Fil ed Jan. 11, 1940 a E /1 0 uZZ/aZ/////// //Q INVENTOR: THeMns LORIMER LMQ 6 9;

HTT RNEY Patented Aug. 26, 1941 me: W

I)ABBING BRUSH FonwooncoMBING I memes; V

Thomas Lorimer, BradfordjEngland ApplicationJanuary 11, 1940,1'seria1No. 313,383 1 In Great Britain July 1'7, 1939-;

' 3 Claims. (01.19 124 This invention relates to improvements in dabbingbrushes used in wool combing operations, and refers to brushes of thekind-employing a plurality of sections adapted to be reversible endwise,and more particularly to that type of brush having a back portion whichmay be permanently attached to the dabbing mechanism, said back portionbeing provided with depending lugs to receive securing bolts adapted topass horizontally through adjacent and abutting sections.

In the improvement under consideration there is no necessity for morethan three brush sections, one to cover that part which is subject tomost wear, another to abut as it were parallel with the first sectionand pass beyond same, and a third section to abut with the other twosections. The first and second mentioned sections are not connected bybolts, but the second and third sections are connected, preferably byone bolt, which passes through the stocks and is secured betweendepending lugs. The first mentioned section is slid into positionbetween the second section and a depending-lug on-the back,and'pressureis applied to press the section together such as by aninterposed leaf spring carried by one of the depending lugs and capableof being pressed towards a section by an adjusting r clamping screw.

The sections are rectangular in form and are endwise reversible inconvenient manner and when fitted together form the brush face. It isthe first mentioned section that is subject to most wear and it will bepreferable to stock a larger number of these sections than of the othertwo. The present arrangement and construction is such that on therelease of the adjusting or clamping screw pressure is released and theworn section may be readily pulled out of place to permit it to bereversed, or a new one to be slid into position and be secured by thetightening up of the adjusting screw, a very easy and rapid operationwhich can be performed without taking the brush from the dabber foot.Further it will be understood that the depending lugs may provide forexpansion or shrinkage of the brush stocks which may occur from storageeffects, the interposed leaf spring giving this advantageous effect. Theface area of the back portion will preferably be rather greater than ofthe area covered by the assembled sections.

In some forms the depending lugs may have lips adapted to take over theunder edges of the stocks of the sections'to ensure that the stocks arepressed towards the back, but a really tight fit from such constructionis not essential.

-I may: deviate from the above description in minordetail withoutimpairing the efficiency of the apparatus.

In describing my invention in detail. reference is made to. theaccompanying sheet of drawing, similar letters indicating similar parts,inwhich:

Fig. .1 represents an under face view of a dabbing brush according to myimprovement.

Fig. 2 represents an end view of the brush and back, in acting position.

Fig.3 .representsa section of the brush and.

backQon line a-b of Fig. 1.

Fig. 4 represents a plan view, showing a modified form of securing twosections by one bolt.

Fig. 5 represents an elevation of depending lug and pressure applyingmeans, referred to.

To carry my improvements into effect I provide a main' back member Dconveniently adapted to be secured to what is known as a dabber foot. Asmeans for securing the back D to a dabber foot may vary, such means arenot illustrated. The saidback member, of suitable material, such as a;metal, fibre, or wood, metal being preferred, is. given a. somewhat Lshaped form to correspond to;the shape of the brush which is assembledfroma plurality of reversible sections and secured 'to the backtD inmanner hereinafter described.

I am'aware that a back member and reversible sections as beforementioned have previously been proposed and to secure such sections tothe back, the said back has carried depending lugs between which thesections have been placed and secured by bolts passing through such lugsand all the sections. This construction is known by my previous Britishspecification 485,218.

In the form of brush under consideration the brush sections are denotedby the letters A, B and C, A being a section to cover that part of thebrush which is subject to most wear, B being a section abutting againstA but of greater length,

and C being a section substantially square to fill in the angle formedbetween A and B and give a usual configuration to the brush. Threesections are usually sufficient for all practical purposes.

The brush back D has an under face area slightly larger than the area ofthe assembled stocks of the sections, and is provided with dependinglugs L, L and L L being on one side and L and L on the opposite side.Whilst these lugs may be integral with the back, they are preferablysecured to the back by bolts, screws,

rivets, or the like L".

All the sections are rectangular and are reversible endwise. The stocksof the sections B and C are drilled through as at B and C and a bolt Eis utilised to secure such two sections between the lugs L and L In Fig.1, the bolt E is not in a mid position with regard to the section C andsuch section is provided with two drilled holes C as shown. In Fig. 4,the bolt E is arranged to pass through the centre of the section C andonly one drilled hole C is required. The section B will have two drilledholes B as shown in Fig, 1.

The section A is undrilled in its stock and is secured in the followingmanner.

The brush back D is of slightly larger area than the assembled sectionsand this leaves a space D between the side of the back and the edge ofthe stock of the section B and thus provides a certain amount of playfor the section A and part of the section B between the lugsL and L slidinto and out of position, as indicated by the arrow thereon. The lug Lis by preference provided with a lip or flange L adapted to act as aslide guide for the section A and to slightly overlap the edge of itsstock.

In order to secure the section A, means for-applying pressure againsteither the section B or the section A to clamp the sections between thelugs L and L are provided.

The most convenient form is by means of a leaf spring S attached to thelug L ata point as S towards the bolt E, (see Fig. 5) and with its freeend S extendingtowards the end of the lug L. The spring S serves to makeup the gap between the section B and lug L for a considerable distance.

The lug L is provided with a clamping screw. S operating through athreaded aperture inthe lug, and by tightening this screw the leafspring is pressed against the section B which in turn is pressed againstthe section A, which is in turn pressed against the lug L For removingor reversing and replacing the section A, it is only necessary to easethe pressure of the. screw S and to retighten same when the sections arereassembled. To remove and reverse the other sections, the aboveoperation is carried out as well as removal and replacement of the boltE.

Consequently the section A may be easilyv In some forms the back D maycarry a depending portion D in addition to the lug L to form an addedabutment for a part of the stock of section A, and such portion may berather deeper than the stock and be cut out to provide an overhanging lito provide a slide after the manner described with reference to the lugL and lip I].

From the foregoing description it will be readily understood thatwithout removing the brush from its dabber foot the section A may bevery rapidly changed or reversed.

What I claim is:

1. A sectional dabbing brush for woolcombing machines, comprising a backmember, a plurality of brush sections removably secured on said back,one of said sections being slidable in relation to the other sectionsinto and out of position on the back, all of said sections beingindividually reversible endwise with relation to each other, andflexible means for retaining said slidable section in operativeposition.

2. A sectional dabbing brush for woolcombing machines, comprising a backmember having depending lugs at opposite side edges thereof, a.plurality of endwise reversible brush sections removably secured betweensaid lugs, one of said sections being slidable relatively to the other,sections, and flexible means for clamping said slidable section betweenone of, the other sections and one of said lugs.

3. A sectional dabbing brush for woolcombing machines, comprising a backmember having depending lugs at opposite side edges thereof, a pair ofendwise-reversible brush sections disposed between said lugs in abuttingrelation thereto and to each other, a horizontally extending boltpassing through the stocks of said brush sections and through the lugsat opposite sides of the back thereby to removably secure the brushsections on said back, an endwise reversible brush section removablydisposed between one of said lugs and one of the other brush sections,and flexible means carried by one of said lugs for clamping said lastbrush section in abutting relation to its companion brush sections.

THOMAS Loren/inn.

